Adjustable straightedge plumb and level



- nrre STATES ADJUSTABLE STBAIGHTEDGE PLUMB AND LEVEL.

Specification of Letters Patent.

Patented Nov. 22, 192

Application filed April 29, 1919. Serial No. 293,542.

To all whom it may concern:

Be it known that I, PHILIP T. FAGRIE, a citizen of the United States,residing at 2003'} 1st avenue, Seattle, in the county of King and Stateof Washington, have invented certain new and useful Improvements inAdjustable Straightedge Plumbs and Levels; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable other skilled in the art to which it appertains tomake and use the same.

This invention relates to a plumb and level for use by artisans andparticularly to such devices which are used in connection with astraight-edge used for ascertaining the line of a horizontal orperpendicular surface as to whether the same is true;

The objects of the invention being to provide a simple and efficientcombination plumb and level which may be easily at tached to anyordinary straight-edge, and preferably of such form as to be adapted toa wooden strai ht-ed e in common use 2: O

by carpenters and masons for their construction work, the device toenable the user of the straight-edge to erect his work on the lines hemay desire, either level or plumb, and also to provide means whereby theinstrument may be attached to such forms of straight-edge of varyingthickness.

With these and other objects, for illustration I have made theaccompanying drawings, of which;

Figure l representsa side elevation of the device in place;

Fig. 2 shows an end view of the device, with part of straight-edge insection;

Like numerals on the figures show like parts of the structure.

1, represents a portion of any. ordinary wooden straight-edge, with theends broken away, and 2 the hand opening out out, and into which mydevice is'affixed for use.

The device is held to the straight-edge by two wings or clamps 3 and 4,by means of a bolt 5 passing through the wood and through the clamps oneach side thereof, the bolt having any suitable head and nut on eitherend thereof. Both ends of the clamp at their upper and outer ends areturned at angles and bent to form ears 10 and 10 for a hinge connectionand through which connecting pins 7 and 8 are passed, being providedwith slotted head for a screwdriver as shown in Fig. 2 and a threadedportion at its other end as shown in Fig. 1, which threads intocorresponding thread cut in the appropriate ear 10. Corresponding ears9, 9, are pro;

vided on the base of the horizontal'part'6v of the level case, and pin 7is passed through the earsof 6 and 3 similar to a pin in a door butt,thereby providing a hinge jointfor the side clamps on each side of thepart 6.

The part 6 is hollowed out and an ordinary spirit vial 11 is embedded inthe customary manner with plaster Paris or. other similar retainingsubstance and a screw plug 12 is used'to positively close thedoor overthe vial, but the plug may be removed when necessary to renew the vialin case of accidental breakage, the vial being so filled with spirits orother fluid to leave the ordinary bubble 13, to enable the operator todetermine the level of the sur. face upon which the device may be placedAt one end of thebase 6 and rising at right angles thereto is provided acasing 14 into which is embedded a vial 15 in similar manner and in formas the other in base 6, with bubble 16, and a screw plug 17. Extendingslightly beyond the upright casing 14 the base provides a footing and asimilar footing at the other end of 6, through which footings are holesthreaded for set screws 20, 20, provided with thumb nut heads 18, 18,and button bases 19, 19 which latter rest normally against thesurface ofthe lower portion of the hand hole in the straight-edge, and theoperator to adjust the device so that the bubble in 11 in horizontalposition is central when the straight-edge is horizontal, simply turnsthe screws 20, 20 up or down respectively to bring the level true.

The bubble 16 will also be in the center when the straighhedge is placedagainst a vertical face; the pin bolt 5 thus serving as a pivot topermit the true adjusting of the device in place.

The offset ears 10, 10 on the clamps 3 and 4 vary on each side and aregreater on the first or 8. Fig. 2 shows the clamps with the ears of eachturned outward in dark lines, also dotted linesir" and 1, and when inthe shaded positions last described they will embrace a thickerstraight-edge than in the positions shown in dark lines as 3 and 4.Other adjustments may be readily made by turning the ears of one sideout in conjunction while the ears of the opposite clamp turn inward,which would furnish a space for a thickness of straight-edge between thedark lines and the shaded or dotted lines, and the varying offsetof thetwo sides may be utilized for varying the space as desired, theintention being that these devices may be adapted in the trade forattachment to varying thicknesses of straight-edges in use.

What I claim is:

1. The combination with a straight-edge, of clamping plates arrangedupon opposite sides of the straight-edge, means for detachablyconnecting the plates to the straight-edge, said plates havingoutstandiIlg perforated ears formed thereon at the upper edges 01 saidplates and an angular vial holder arranged above the upper edges of theplates and having perforated ears carried thereby and adapted to bedisposed in alinement with the ears of the plates and removable ivotpins extending through the ears of both the plates and vial holder. 2.The combination with a straight-edge, of clamping plates in positionupon the straight-edge, having outstanding perforated ears formed attheir upper edges, the ears of one of said plates being projectedfarther beyond the side wall of the plate than the ears on the otherplate, a vial holder arranged above the plate, having perforated earsadapted to be disposed in alinement with the ears on the plate and amovable pivot bolt arranged within said a ears of both the plate and thevial holder and means for adjusting the vial holder to conform with theface of the straight-edge.

3. The combination with a straight-edge, of clamping plates disposedupon opposite sides oi the straight-edge, having perforated ears formedupon their longitudinal edges, the ears on one plate extending outwardlyfarther than the ears on the other plate, a vial holder, means forhingedly connecting the vial holder with the plates and the outstandingears on said plates being adapted for arrangement with respect to thevial holder, whereby the plates can be clamped to traight-edges oidifferent thicknesses.

l. The combination with a straight-edge, clamping plates securedthereto, having perforated ears formed on one edge, the ears onone ofsaid plates extending farther beyond the face of the plate than the earson the other plate, a vial holderdisposed adjacent the longitudinaledges of said plates, means forming connection between the vial holderand the ears on th plates, said connections being detachable, wherebythe plates can be arranged for clamping engagement with straight-edgesof different thicknesses.

In testimony whereof I my signature.

PHILIP T. FAGRIE.

